get ctrl and debug frontend layers onto new pdb-path-based debug info loader layer; sketch out standalone fuzzy search layer, to replace old dbgi searching functionality; shift all debug frontend code from referring to debug info via 'binaries' to referring to debug info via 'dbgis', just file entities at the location of o.g. debug info

src/base/base_entry_point.c

@@ -42,6 +42,9 @@ main_thread_base_entry_point(void (*entry_point)(CmdLine *cmdline), char **argum
 #if defined(DI_H)
   di_init();
 #endif
+#if defined(FUZZY_SEARCH_H)
+  fzy_init();
+#endif
 #if defined(TXTI_H)
   txti_init();
 #endif